Liners, shadows, and mascaras can end up looking like a hot (smudged) mess at the end of the day if you don't use a good primer. Keep on your eye makeup with these reader faves

If you don't prime before applying eye makeup, you're committing a serious makeup crime. If you aren't convinced that you need (or have time for) this crucial step, maybe this will do it: Experts say that the No. 1 way to prevent makeup from melting and smudging is to prime. (Think about it this way: Taking an extra 10 seconds in the morning to apply eye primer is quicker than spending five minutes wiping eyeliner off your lower lids in the afternoon.)

To prevent these kinds of makeup mishaps, we've combed through hundreds of reviews of eye primers to bring you the 12 that work best. Readers say these primers do exactly what they're supposed to: Keep your eye makeup looking as fresh as it did the moment you applied it -- all day.

I disagree w/the opinion that primers are a waste unless one has oily eyelids. I have extremely dry skin and I have to use a primer for there to be no creases, no crepeyness, & for shadows to have staying power.